User calibration

The intended purpose of the user calibration is to calibrate the device, for example, in a smaller output signal range than that calibrated by the vendor. As a result, a higher accuracy can be attained for the smaller output signal range.

The correction function has the same form as the correction function of the vendor calibration:

Y_U = G_U* X_U + O_U

Y_U: Output value after user calibration

X_U: Output value before user calibration

G_U : Gain

O_U : Offset

Enabling the user calibration

The user calibration is disabled in the factory. It can be enabled individually for each output. To do this, set the corresponding CoE index to TRUE:

Connection	CoE object		Parameter
X01	8140_hex	AO Settings Ch.1	07_hex	Enable user calibration
X02	8150_hex	AO Settings Ch.2	07_hex	Enable user calibration
X05	8160_hex	AO Settings Ch.3	07_hex	Enable user calibration
X06	8170_hex	AO Settings Ch.4	07_hex	Enable user calibration

Setting the calibration coefficients

Set the calibration coefficients via the following CoE parameters:

Connection	CoE object		Parameter
X01	8140_hex	AO Settings Ch.1	15_hex	User calibration offset
X01	8140_hex	AO Settings Ch.1	16_hex	User calibration gain
X02	8150_hex	AO Settings Ch.2	15_hex	User calibration offset
X02	8150_hex	AO Settings Ch.2	16_hex	User calibration gain
X05	8160_hex	AO Settings Ch.3	15_hex	User calibration offset
X05	8160_hex	AO Settings Ch.3	16_hex	User calibration gain
X06	8170_hex	AO Settings Ch.4	15_hex	User calibration offset
X06	8170_hex	AO Settings Ch.4	16_hex	User calibration gain